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  <h2 class="title">需求</h2>
  <p class="para">
   The SQLSRV extension can be used on the following operating systems:
   <ul class="simplelist">
    <li class="member">Windows Vista Service Pack 2 or later</li>
    <li class="member">Windows Server 2008 Service Pack 2 or later</li>
    <li class="member">Windows Server 2008 R2</li>
    <li class="member">Windows 7</li>
   </ul>
  </p>
  <p class="para">
   The SQLSRV extension requires that the Microsoft SQL Server 2012 Native 
   Client be installed on the same computer that is running PHP. If the Microsoft 
   SQL Server 2012 Native Client is not already installed, click the appropriate link below 
   to download it:
  <ul class="simplelist">
    <li class="member"><a href="http://go.microsoft.com/fwlink/?LinkID=239647" class="link external">&raquo;&nbsp;Download the x86 package</a></li>
    <li class="member"><a href="http://go.microsoft.com/fwlink/?LinkID=239648" class="link external">&raquo;&nbsp;Download the x64 package</a></li>
   </ul>
  </p>
  <p class="para">
   The SQLSRV download comes 8 driver files, four of which are for PDO support.
  </p>
  <p class="para">
  The most recent version of the driver is available for download here:
  <a href="http://msdn.microsoft.com/en-us/sqlserver/ff657782.aspx" class="link external">&raquo;&nbsp;SQLSRV download</a>.
  </p>
   <p class="para">
   For more information about SQLSRV requirements, see 
   <a href="http://msdn.microsoft.com/en-us/library/cc296170.aspx" class="link external">&raquo;&nbsp;SQLSRV System Requirements</a>.
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